Cylinder-lapping machine



June 9, 1925.

1,540,975 c. w. WINTHER ET AL s CYLINDER LAPPING MACHINE Filed April 17, 1922 Patented June 9, 1925.

UNITED STATES n 1,510,975 PATENT OFFICE.

CHRISTIAN W. WINTHER, CLARENCE W. WINTIIER, AND LENNA v. WINTHER, or.Y

FRESNO, CALIFORNIA. n

. CYLINDER-LAPPING MACHINE.

Application filed April 17, 1922. Serial No. 553,940.

To all whom t may concern:

Be it known that we, CHRISTIAN W. "WINTI-IER, CLARENCE W. VINTHER, and LENNA 1V. lVIN'ri-IER, all citizens of the United States, and residents ofl Fresno, in the county of Fresno, State of California, have invented certain new and useful Improveinents in Cylinder-Lapping Machines, of which the following is a specification.

Heretofore in the use of an explosion engine, when the cylinders become worn it has been customary to rebore or regrind the cylinders which necessitates fitting new pistons and this necessitates the ddismantling f of the engineV in order'that the block might be removed to the machine to be used in regrinding or reboring the cylinders, entailing a considerable expenditure of time and trouble. It is the object of our invention to provide means whereby the cylinders may be reground or lapped and new pistons fitted therein without removing the same from its place of use and without removing any part of the engine other than thef cylinder A further object is to provide a device for the abovcpurpose which may be easily and quickly transported from place to place and which may be easily and quickly attached to the Cylinder block by means of the bolts used to hold the cylinder head po'- sitioned, and which may be easily and quickly adjusted to its position for use.

Other objects and advantageswill appear V hereinafter, and while we have shown and r a cylinder block with our device positioned thereon in position for use.

Fig.` 2 is a side elevation of our device on an enlarged scale. p y p Fig. 3 is a front elevation of Fig. 2.

Fig. et is any enlarged sectional detail ofl the elevating mechanism.

F ig. 5 is an enlarged detail view, partly broken away, of the piston operating spindle.

Fig. 6 is an enlarged detail of the 'piston operating mechanism.

Fig. 7 is a fragmentary top elevation of our driving disc. i

Referring to the drawings, our Vdevice comprises a base 10, provided. with a slot 11 through which the bolt 12 passes into one of the cylinder head bolt holes to retain the device in its position for use, the slot permitting the adjustment4 necessary in order to centralize the device overthe cylinder to be lapped. At one `end of member 11 are provided vertical bearings `13 and 111 in which are rigidlyfsecured the lower ends of vertically extending guide lrods 15 Slidably mounted on rods 15 and and 16. 16, tok slide vertically, are hollow, tubular slide members` 17 and`18, the upper ends of which terminate in and are connectedV by an n integral' bracket 19, `from. `which.` l

bracket extends rearwardly, equally spaced from rods 15 and 16,V a horizontal bearling 20, the free end of which terminates in a gearcase 21.' Formed on slide members 17 and 18, a` short distance belowT bracket 19,v are bosses 22 and 23 provided with an outwardly extending shelf 24 upon which is `mounted the motor 25. Revolubly mounted in lbearing 20 is a shaft 26 upon one end of which is rigidly mounted a disc 27 andon the other end is rigidly mounted va worm wheel 28 which meshes with a worm! 29 mounted on the end of shaft 30 of motor `slot 31 surrounded by a pad 32, and slidably mounted in slot 31 is a pintle bolt 33. Pintle bolt 33 is square where it passes through f slot 31 to4 prevent retatiofn of said bolt in said slot, andis providedwith a squared head 34s. Detachablymounted on bolt 33 is a bevel gear 35, theba'ck of which'abuts against the pad 32-of disk 27, andis pro vided with a sleeve 36 extending from its front face, which sleeve is revolubly mounted lwithin a bearing 37 upon the upper end of bracket 38. A. washer 39 and a nut 4-0 on the end of pintle 33 provide ineans for locking gear 55l against rotation upon said p-intle The other end of lil-racket 38 terminates in a vertical bearing 41 in'which is adjustably mounted a bushing 42, adjustable vertically. Revolubly mounted in bushing 42 is the operating spindle 43, upon upwardlyntroin flange 51 are oppo'sitel'y',di'sl` posed ear 52 and 53' y"Whichear's is'pivot-' 18 and their l'oinponfent`pafrtls are/elevated or lomver'd'as"dsireCh'"A loclifnfseretv 59' M -1 proJecting thro O'h said b s 2 lprovides means;` 'rlloelin' thedevice in'its adjusted position by. niean's 'a'handleTO". Y, l,

In the'k 'o1 ratio'nfit'foui" devicethe "device will f le p'ositi-o1i'elc'l'ri`pon the' cylinder block with lthe piston spindle" as 'nearly' cen'- Y trallvbf the. )ylindr |to" beoper'ated upon as possil'l' 'B olt 12`w' 4tl'ien be` tightened to hold' 'the device against' acc'ideiitiilf'ihoveluentflThe screw" '59`ivill then be"'g looseii'ed" and Handle 5'8op'c; it `rotategear '56'tro the 'desired' li'e'ight'so thattlie 'piston may be' inserted "in thefil'inderf." vWith xthe' spindle"V 54 positionedin'sleeve 50 the vsaid screivi'?. will then"beftightened to l1olcl `spii'1cl'le 54fin its adjustedY plositi'oi'i. The spind'lewill then ble'r'djusted' Within slot B1 to Yprovide" the desiredstroke v`o^l:'. 'th'e spindle '43, this st-rolebeing'conditioned upon the stroke i' length Vofthe cylinder o1" .the portion lofthe' cylinderV it is desired to operate upon. Gear 56 willthen'be operated to louter the device to the .desired position for'A operation "and lock nut 59'uiill be' 'used vto"`lock' the saine inn' this position.l Emery lor othergr-indingf'coin-l poundivill be` used .upon -thewvf'alls of Vthe cylinder andthe .n'iotor ivillthen be operated thereby rot-ating discb27'., the rotatiQli of dise 2T causingva :Y-,ertizal ino'vein i lt ,o'tspindlej` 54 and'at thesarne' ne', through bevel gearsj 35 and 42%,. imparting a rotary VVrnovrnr'ie-nt to, spi`11dle.,54, thus lirovding a-coinbined reciprocatory-anfd rotarynijovelnent to the pis ton Withintliecylinder@ Should itbeV desired to usd-a vertial inoveinent, only,said

screw 63` in bearing 41 will be loosened until )vill be lowered in slot -31 until gear 35 is lmembers to `slideverti'zallyV ,and adaptcd'to carry a piston; iueanscarriedby said frame lhorizontal rotating f infovelnit i?q; Said DiS- slide nl einlbers in their des' perry@ piston thieves@ the end is uf'itlidraWn from recess (S1-lin b ushf. ing 42.12 .'Brisling42'fwill then be' lo'vei'dun'- til. .recess G5 registers With the end of screw .63. Screw. 63 will then. betsllteneclend the. 4device is"V real 'for' use', it vbeing"understood' V70 vth'ata'sbushing;4 42 is lowered gear 42n will also bevloiveredand `Withdrawn from engagement with gear 35. Should 1t be desired to use theirotatlve inoveinent only, pintle 33 centrallv of shaft 26, the result of be obvious. g Having described "our'invention what wo claim is:` 't 1. A. cylinder'lappinginachine comprising a frainefa'dapte'd 'to be., detachablT finounted up'on the'fubpcr enfdot a cylinder blocltg'verfwhich ivill "tically extendigguide luen'i l ')erlsfcarried*byI said Yfraineg'means.inountedonl said guide Y l to` inipart vertical reciprocating n ioveinent to said v'slide n'ienibers, and ineens'` operated jv ysaid `lastr ineans to in ipa'rt a contimrous *l 90. ton always inthe. Same. direction during its A r'eciprocation;` and nieanstovairy the length of said reciprocating inovein'entfw "2. A cylinder lapping,niaching` coinprisfv ing a frame," afnam/ot, guide members ex ten di iig upwardlyl ronr 'said l traine; ahpair V y 1 i ot shdevineinbers inounteduupon said guide members; a bearing,car'rredby the -upper ends off'A said slide vinernbersat xright angles thereto; a disc revolubljT mounted' in'said ,'lo'o `bea-ringabevel ar adjlusxtably inounted on" the facfevot ysaid Ad "adjustable radially: a-

-bearing carriedbyfsaid )vhichthe same is. revohibly mounted g a t 1bearin ggv vconnoctcd todflsaidA last bearing aty right angles. thereto;L n spindle'lrevolublv` .inounted iu I said last bearing: a gar'on tllie vupper end olsaid spindle operativ. engagement with sa' l ineiitioncd-'- gear i l. Abearing slidably ountedfiiion 'said fslidc' `iiie'rni'b tofslide verti `all. yg*zi/sleeve'iievolriblynoun H ed in saidv .bearingL'a'universallconnecti' uI between sle'e'ig'e and said'fs'pindle a spin? 'Y dle detach: f y in'ounto'dat its u'ppei'lend in i ,\:.',f l U nectcd to a piston' ou its lou to ralsvefor loiry said slide in, y to the guide members; means 'tlo'floc position 'an d 41,20

eans to impart a continuous rotating move? 13'0 /lll ment always in the same direction to sai-d piston during its reciprocation; and means to regulate the extent of said reciprocating movement.

et. In a lapping machine a frame adapted t-o be adjustably mounted upon the upper end of a cylinder; a vertically slidablemember carried by said frame; a work engaging member' carried by said slidable member; means mounted on said frame for rotating said work holding member continuously in the saine direction; and means operated by said last means for imparting a vertical reciprocating movement to said workholding member synchronously with said rotating movement, said reciprocating movement and rotating` movement being completed simultaneously.

5. A cylinder lapping machine comprising` a trame adaptedto be adjustably mounted upon the upper end ot a cylinder block; a vertically slidable member carried by said trame; a work holding member mounted on the lower end of said slidable member; a

universal joint between said slidable mem-` Y member synchronously with said work holding` member; means to var7 the length of said reciprocating movement; and means to adjust said work holding member relative to the work. Y

(i. A lapping machine comprising a trame adapted to be adjustably mounted upon the upper end oi a cylinder block; vertically extending guide members carried by said trame; a vertically extending lieariug mounted on said guide members to slide vertically: a bearing .mounted upon the npper end et said guide members at right angles thereto and being capable ot adjustment vertically; means to adjust the vertical position ot said last bearing; means to lock said bearing in its adjusted position; a disc revolubly mounted in said last bearing; means ttor rotating said disc; a relatively uon-revoluble bevel gear carried by said disc rotatable therewith; a bracket revolubly mounted on said bevel gear; a vertically eX- mounted in said lirst verticalbearing; an V operative connection between said sleeve and spindle; a piston engaging member detachably mounted in said sleeve.

7. A lapping machine vcomprising a trame; i

vertically extending guide members carried by said frame; a bracket mounted on said guide members adjustable vertically; means to adjust said bracket vertically; means to lock said bracket in its adjusted position; a dise revolubly mounted in the upper end ot said bracket; a power device carried by said bracket adapted to rotate said disc; a bevel gear eccentrically butrelatively non-revolubly mounted on said disc; means to vary the eccentric relation ot said gear and disc; a bracket carriedby said bevel gear; a connecting rod revolubly mounted at its upper end in said bracket; a pinion gear rigidly mounted on the upper end et said spindle in operative engagement with said bevel gear; a bearing slidably mounted in said guide members to slide vertically; a work engaging spindle revolubly mounted in said bearing to slide therewith; a flexible connection between the adjacent ends o' said spindle and connecting rod; and means at the tree end et said spindle tor detachably securing a piston thereto. v j

8. A lapping machine comprising a trame; a bracket mounted in said trame adjustable longitudinally theree't; a disc revolubly mounted in said bracket; a bevel gear adjustably mounted on said disc to rotate therewith but relatively non-rcvoluble and adj ustable radially; al bearing slidably mounted iu said frame; a work engaging spindle revolubly-mounted in said bearing to slide therewith.; a connecting rod connected at one end t-o said work holding spindle and having at its other end a pinion gear in operative engagement with said bevel gear; and means to rotate said disc.

ln wit-ness that we claim the foregoing we havefliereunto set our handsthislllst day of March, 1922.

CHRISTIAN TN. lVINTHER.,

CLARENCE lV. VVINTHER.

LENNA V. l/VINTHER. 

